作者
Anna Palmisano, Valeria Nicoletti, Caterina Colantoni, Caterina Beatrice Monti, Luigi Pannone, Davide Vignale, Fatemeh Darvizeh, Eustachio Agricola, Simone Schaffino, Francesco De Cobelli, Antonio Esposito
发表日期
2021/12
期刊
European Radiology Experimental
卷号
5
页码范围
1-12
出版商
Springer International Publishing
简介
Background
We investigated mitral valve annular geometry changes during the cardiac cycle in patients with severe mitral regurgitation (MR) who underwent cardiac computed tomography angiography (CCTA) prior to percutaneous mitral valve replacement or annuloplasty.
Methods
Fifty-one patients with severe MR and high surgical risk (Carpentier classification: 3 type I, 16 type II, 16 type IIIa, 16 type IIIb) underwent multiphase electrocardiographically gated (0–90%) CCTA, using a second generation dual-source CT scanner, as pre-procedural planning. Twenty-one patients without MR served as controls. The mitral valve annulus was segmented every 10% step of the R-R interval, according to the D-shaped segmentation model, and differences among groups were analysed by t-test or ANOVA.
Results
Mitral annular …
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A Palmisano, V Nicoletti, C Colantoni, CB Monti… - European Radiology Experimental, 2021